Gore

Gore was one of those odd bands that come and go without much fanfare,
and then years later are revered by some as influential cult heroes.
On their debut, Hart Gore, this Dutch instrumental trio plays a form
of raw, simplistic yet cool noise punk/metal.
One band that does come to mind here might be
Melvins,
though Buzz's crew is more twisted and sludgy than Gore were.
The songs are never particularly complex (to their credit, they are also
usually pretty short), a bit meandering in places, but always heavy in
a sort of halting, angular manner.
It's worth noting that the re-release of Hart Gore
(packaged together with the followup Mean Man's Dream by
Southern Lord
in 2008)
contains "lyrics" that were meant to supplement the songs in one form
or another -- noteable since several of the songs do have that sort
of unfinished, demo-waiting-for-vocals feel to it, even though the band
was always instrumental and apparently intentionally so.
The band put out three albums in a short period in the eighties, followed
by a largely new lineup releasing two more albums in '91 and '97.
To these ears this is more of a curiosity band than anything else -- there
were few if any bands sounding like this at the time (even now it's a bit
of a unique listen), and that in itself is a credit to their legacy.